SESSIONE ORDINARIA 2003 TERZA PROVA SCRITTA COMMISSIONE CRTF45002 INFORMATICA. – ORDINAMENTO Provincia di Cremona ESAMI DI STATO CONCLUSIVI DEI CORSI DI STUDIO D’ISTRUZIONE SECONDARIA SUPERIORE A.S. 2002/2003 ISTITUTO TECNICO INDUSTRIALE “G. GALILEI” – CREMA TERZA PROVA CANDIDATO: ______________________________________________ TIPOLOGIA : B DISCIPLINE COINVOLTE - MATEMATICA - ELETTRONICA - CALCOLO DELLE PROBABILITÀ E STATISTICA - SISTEMI DI ELABORAZIONE E TRASMISS. DELLE INFORMAZIONI DURATA MASSIMA 2 ORE CREMA, 23 GIUGNO 2003 Spazio riservato alla Commissione Punteggio assegnato: ___/15 Pag. 1 di 5 CLASSE: 5B Informatica CANDIDATO: _______________________ MATERIA: ELETTRONICA 1. Acquisizione dati: il blocco di condizionamento dei segnali (scopo, operazioni effettuate) ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ 2. Tecniche per la realizzazione di un collegamento FULL DUPLEX ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ 3. Rappresentare lo schema a blocchi di un sistema di telecomunicazione, evidenziando anche quali sono le cause di degrado del segnale informativo ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ Pag. 2 di 5 CLASSE: 5B Informatica CANDIDATO: _______________________ MATERIA: CALCOLO DELLE PROBABILITÀ E STATISTICA 1. Che cosa si intende per controllo statistico di qualità ? ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ 2. Scelto uno stimatore si descriva quali tipi di stima si possono fare su un parametro della popolazione ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ 3. Come viene affrontato da una azienda il problema delle scorte di magazzino ? ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ Pag. 3 di 5 CLASSE: 5B Informatica CANDIDATO: _______________________ MATERIA: MATEMATICA Il candidato risponda ai seguenti quesiti utilizzando per ciascuna risposta non più di 8 righe Quesito n. 1 Individuare classificare i punti stazionari della seguente funzione reale di variabile reale y x 1 x2 ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ________________________________ ____________________________________________________________ ____________________________________________________________ Quesito n. 2 Determinare l’area della regione di piano limitata dalla parabola y=-x2-x+6, dalla retta y=5-x ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ Quesito n. 3 Data una progressione aritmetica avente: a) a10=61/12 a30=121/12 calcolare a3 ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ Pag. 4 di 5 CLASSE: 5B Informatica CANDIDATO: _______________________ MATERIA: SISTEMI a. Describe the main features of a real time operating system 1 ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ b. Descrivi la differenza fra un sistema di controllo ad anello aperto ed uno ad anello chiuso, fornendo anche uno schema funzionale ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ c. Come si ottiene la codifica Manchester? Indicare.dove essa trova applicazione. ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ 1 Il candidato può risponde sia in lingua italiana che inglese Pag. 5 di 5